| 提高被动声纳宽带检测性能的一种新方法 |
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| 引用本文： | 蒋小勇,于李洋,杜选民.提高被动声纳宽带检测性能的一种新方法[J].声学技术,2011(6):484-488. |
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| 作者姓名： | 蒋小勇 于李洋 杜选民 |
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| 作者单位： | [1]上海船舶电子设备研究所,上海201108 [2]上海军驻大连426厂军事代表室,辽宁大连116005 |
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| 摘 要： | 宽带能量检测是被动声纳实现目标探测功能的常用方法,常规能量检测(Conventional Energy Detection,CED)方法在复杂环境下的检测性能迅速降低.子带峰值能量检测(Subband Peak Energy Detection,SPED)可以有效改善常规能量检测方法的性能,提高时间方位历程显示(BTR...
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| 关 键 词： | 被动声纳 常规能量检测 子带峰值能量检测 STMV波束形成 |
| 收稿时间： | 2010/12/22 0:00:00 |
| 修稿时间： | 2011/3/17 0:00:00 |
A novel efficient technique to improve performance of passive sonar broadband detection |
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| JIANG Xiao-yong,YU Li-yang and DU Xuan-min.A novel efficient technique to improve performance of passive sonar broadband detection[J].Technical Acoustics,2011(6):484-488. |
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| Authors: | JIANG Xiao-yong YU Li-yang and DU Xuan-min |
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| Affiliation: | 1.Shanghai Marine Electronic Equipment Research Institute,Shanghai 201108,China; 2.Representative Office of Navy at Dalian 426 Factory,Dalian 116005,Liaoning,China) |
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| Abstract: | Broadband energy detection is a traditional method to detect acoustic signals in passive sonar.The perform-ance of conventional energy detection（CED） is becoming worse rapidly in real practical underwater acoustic environ-ment with multiple source signals.Subband peak energy detection（SPED） method can improve performance of CED and spatial resolution of bearing time recording（BTR） display.However,the performance advantage of SPED is affected by beamwidth and sidelobe level of beams.A novel broadband detection technique,which combines steered minimum variance（STMV） adaptive beamforming with SPED,is put forward.Through signal processing of acoustic data from real sea trial,the overall conclusion is that SPED based on STMV provides more increased performance than SPED based on conventional beamforming（CBF）. |
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| Keywords: | passive sonar conventional energy detection subband peak energy detection steered minimum variance adaptive beamforming |
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